Phase field simulation of liquid phase separation with fluid flow

G. Tegze, T. Pusztai, L. Gránásy

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

A phase-field theory of binary liquid phase separation coupled to fluid flow is presented. The respective Cahn-Hilliard-type and Navier-Stokes equations are solved numerically. We incorporate composition and temperature dependent capillary forces. The free energies of the bulk liquid phases are taken from the regular solution model. In the simulations, we observe Marangoni motion, and direct and indirect hydrodynamic interactions between the droplets. We find that coagulation is dramatically accelerated by flow effects. Possible extension of the model to solidification is discussed.

Original languageEnglish
Pages (from-to)418-422
Number of pages5
JournalMaterials Science and Engineering A
Volume413-414
DOIs
Publication statusPublished - Dec 15 2005

Keywords

  • Coagulation
  • Fluid flow
  • Marangoni motion
  • Phase separation
  • Phase-field theory

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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